Packing for condenser tubes



(No Model.)

W. E. VOLZ. v PACKING FOR CONDENSER TUBES. No. 386,048. Patented July 10, 1888'.

uxl a. 5555525 WITNESSES. INVE/VTUR 1 ATTORNEYS- N. FEIERS. Pmmumu w, Washinglon, nc.

NHED STATES PATENT OFFICE.

WILLIAM E. VOLZ, OF NE\V YORK, N. Y.

PACKING FOR CONDENSER=TUBES.

SPECIFICATION forming part of Letters Patent No, 386,048, dated July 10, 1888.

(No model.)

To (LZZ whom it may concern:

Be it known that I. \VILLIAM VOLZ, of the city, county, and State of New York, have invented certain new and useful Improvements in Packing for Surface-Condenser Tubes, of which the following is a specification.

My invention relates to an improved packingfor the tubes of surface-condensers, so as to form waste and water steamtight joints between the tubes and tube-heads thereof; and the invention consists of a cylindrical packing for condenser-tubes composed of spirallywound cord or stay-lacing of cotton, linen, or other material, the coils of said cord or staylaeing being united at their adjacent edges by means of paste, glue, or other adhesive material. The packing may be re-enforced by an interiorcylindricalshell made of woven fabric or other material and saturated with paste, around which the cord or stay-lacing is wound, the tubular packing being then cut into suitable lengths, as required.

Among the eondenser-packings heretofore known the so-called stay-lace packing has been extensively used, owing to its durability, tight littingand easeofremoval,which advantages are offset by the slow, laborious, and expensive method of using itby tucking coil upon coil around the tubes and into the stuffingboXcs of tubeheads until a sufficient quantity is inserted to make a tight joint, while my improved packing can be quickly driven in, as it is cut to the required length and inserted complete into the stufiingboxes.

In the accompanying drawings, Figure 1 represents a side elevation, and Fig. 2 a vertical central section, of my improved packing for surface-coiulenser tubes without aninterior re-enforcing shell. Figs. 3 and 5 are a side view and plan of the exterior cylindrical shell employed for reenforcing the packing, and Figs. -l and (3 are respectively a vertical central section and plan of a packing with a re-enforcing shell.

Similar letters of reference indicate corresponding parts.

In the drawings, a represents a packing, of cylindrical shape, which is obtained by winding a cord or stay-lacing spirally around a mandrel after being saturated with paste, glue, or other adhesive mixture, so that the coils, after being dried, adhere to each other and form a tubular packin This packing may be re-enforced by an interior shell, I), of woven fabric, which is first wound in one or more layers on a mandrel, the overlapping parts being united by paste, glue, or other adhesive material. The cord or stay-lacing is then wound around said shell, after being saturated with adhesive material, so that the coils, after being dried, adhere to the shell and to each other. The tubular shell thus obtained is cut into packing of the required length, inserted around the ends of the condenser-tubes, and driven into the stuffing-boxes formed in the tube-heads around said tube ends.

Having thus described my inVentiou,I claim as new and desire to secure by Letters Patent- 1. A packing for the tubes of surface-condensers, consisting of a cylindrical tube composed of spirally-wound cord or stay'lacing. the coils of said cord or stay-lacing being united edge to edge by an adhesive cement, substantially as described.

2. A packing for the tubes of surface-coir densers, consisting of an interior rc-enforcing shell composed of a woven fabric, and an exterior layer composed of a spirally-wound cord or stay-lacing, the coils of which are united to the shell and to each other by a cement, substantially as described.

In testimony that I claim the foregoing as my inventionI have signed my name in presence of two subscribing witnesses.

\VILLIAM E. VOLZ.

\Vitn'esses:

PAUL GoErEL, MARTIN PETRY. 

